Free Online RB to SUN Converter

Was developed for the first mass-produced e-book reader – Rocket eBook. The format is written in Ruby. RB files are containers holding the entire content for a Rocket eBook device. It has DRM protection capability which is not used in the books published at present due to the format’s lack of popularity.

This is a bitmap image format that is used on Sun Microsystems workstations running the Sun Unix operating system. It is used for some types of research. This format does not support transparency settings. It supports full-color and grayscale images.